Bird cage



FIG. 1 is a front view of the bird cage of the present invention, therear view being a mirror image, but lacking a rear door;

FIG. 2 is a top view thereof;

FIG. 3 is a side view thereof, the opposite side being a mirror image;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a perspective view thereof showing the top and front in theopen position.

The ornamental design for a bird cage, as shown and described.